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The "Colorado" code.

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The "Colorado" code.


Publication date
Topics Ciphers -- Handbooks, manuals, etc. Cryptography -- United States. World War, 1914-1918 -- Cryptography.
Publisher [S.l.] : General Headquarters, American Expeditionary Forces
Collection dultc; americana
Digitizing sponsor Duke University Libraries
Contributor Nicholas Gessler
Language English
47 p. ; 20 cm.
Camera Canon 5D
Identifier coloradocode00unit
Identifier-ark ark:/13960/t1xd1kb3x
Ocr ABBYY FineReader 8.0
Page-progression lr
Pages 56
Ppi 400
Scandate 20100514134959
Scanner scribe1.durham.archive.org
Scanningcenter durham
Year 1918

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